Water-splitting-based, sustainable and efficient H₂ production in green algae as achieved by substrate limitation of the Calvin-Benson-Bassham cycle.

ABSTRACT:

Background

Photobiological H₂ production has the potential of becoming a carbon-free renewable energy source, because upon the combustion of H₂, only water is produced. The [Fe-Fe]-type hydrogenases of green algae are highly active, although extremely O₂-sensitive. Sulphur deprivation is a common way to induce H₂ production, which, however, relies substantially on organic substrates and imposes a severe stress effect resulting in the degradation of the photosynthetic apparatus.

Results

We report on the establishment of an alternative H₂ production method by green algae that is based on a short anaerobic induction, keeping the Calvin-Benson-Bassham cycle inactive by substrate limitation and preserving hydrogenase activity

SUBMITTER: Nagy V 

PROVIDER: S-EPMC5858145 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature